Mediterranean Chickpea and Feta Salad Wrap with Creamy Greek Dressing

For each sandwich:

• 2 tablespoons Greek yogurt
• 1 teaspoon red wine vinegar
• 1 tablespoon olive oil
• 1/4 teaspoon oregano
• 1 pinch garlic powder
• kosher salt to taste
• black pepper to taste
• 1/2 cup baby spinach or other baby greens
• 1/4 cup cooked chickpeas drained and rinsed
• 1/4 cup chopped cucumber
• 2 slices red onion
• 1/4 cup feta cheese chopped
• 1/4 cup tomato chopped
• 1/4 cup pitted olives chopped
• 1 large whole wheat tortilla wrap